Aspose.slides记录(三)

Smartart

1. smartart是office中一个比较特殊的插入样式,该样式数据在openxml里存储在[word|xl|ppt]/diagrams/data([0-9]+).xml中,在word/excel中需采取代码解压后读取xml的方式读取信息,在aspose.slides中有相应的类可直接处理.
2. smartart节点为多层(级)节点,节点之间按父子节点作为节点关系;本文使用递归的方式读取子节点
3. 节点的位置信息可以通过node.getPosition()方法获取,本文不同级的节点用”,”隔开后拼接为字符串存储,将文本及位置信息存放在数据库后,外部修改文本后可保证写回数据时的位置关系一一对应

                if(shape instanceof SmartArt){                    SmartArt smartArt = (SmartArt) shape;                    for (ISmartArtNode node : smartArt.getNodes()){                        int postion = 0;                        //段落                        paras = node.getTextFrame().getParagraphs();                        int len = paras.getCount();                        for (int paraNum = 0; paraNum < len; paraNum++) {                            portions = paras.get_Item(paraNum).getPortions();                            readStyle(portions);                            postion = node.getPosition();                            String  postionNum =  String.valueOf(postion) ;                        }                        // 获取子节点                        String parentPostion = String.valueOf(postion++);                        readSmartArtChildNode(node,  parentPostion);                    }                }

读取子节点

    private void readSmartArtChildNode(ISmartArtNode node,String  parentPostion) {        if (node.getChildNodes() != null) {            ISmartArtNodeCollection childNodes = node.getChildNodes();            int index = 0;            for (ISmartArtNode childNode : childNodes) {                //记录位置信息                String  postionNum = parentPostion +","+ String.valueOf(index)+",";                IParagraphCollection paras = childNode.getTextFrame().getParagraphs();                int len = paras.getCount();                for (int paraNum = 0; paraNum < len; paraNum++) {                    IPortionCollection portions = paras.get_Item(paraNum).getPortions();                    readStyle(portions);                }                ++index;                readSmartArtChildNode(childNode, postionNum);            }        }    }